It turns out Sky will actually end up being the second thatgamecompany title to appear on Apple iOS devices. Flower has appeared on iTunes today. It is $4.99 and takes up 1.05GB of space.
Flower is a six level game. (Technically seven, if you include the credits.) Players control the wind and attempt to blow around a flower petal and make more flowers bloom. In the Apple iOS version, tilt controls are enabled to help players guide the breeze.
Flower is available on the PlayStation 3, PlayStation 4, PlayStation Vita, and Apple iOS devices.